ext

(redirected from Ext2)
Also found in: Dictionary, Acronyms, Wikipedia.

ext

(EXTended file system) The first file system developed exclusively for the Linux operating system. Introduced in 1992, the limits of the Minix file system originally used in Linux were greatly increased: volume size from 64MB to 2GB, and file names from 14 to 255 characters. Ext also introduced a virtual file system (VFS) interface, which allows different underlying architectures to be used.

ext2, ext3, ext4
In 1993, ext2 added the traditional Unix inode and other features of the Unix File System (see inode and UFS). Maximum volume size jumped to 32TB.

Introduced in 2001, the major enhancement to ext3 was three levels of journaling, the most robust of which duplicates the indexes and file contents in the journal before updating the actual file system (see journaling file system). See file system.

In 2008, ext4 added several enhancements for large files: maximum volume size increased to one exabyte and file size to 16TB.

EXT

On drawings, abbr. for “exterior.”
References in periodicals archive ?
This tool is compatible with the following File Systems: FAT12, FAT16, FAT32, EXT2, EXT3 and NTFS partitions.
Mutations in EXT1 and EXT2 account for 44%-66% and 30% of HME patients, respectively, whereas EXT3 appears to be the minor locus (100).
Diagnosis: Genetic confirmation of the diagnosis can be obtained by mutation analysis of EXT1, EXT2, and EXT3 (100, 102, 103).
Comparison of fluorescent single-strand conformation polymorphism analysis and denaturing high-performance liquid chromatography for detection of EXT1 and EXT2 mutations in hereditary multiple exostoses.